Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ph

1 sense of ph

Sense 1
pH, pH scale -- ((from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic);)
       => hydrogen ion concentration -- (the number of moles of hydrogen ions per cubic decimeter)